Can't submit new posts + Home button missing

Couple of days ago, my xenforo at ourforums.net/community stopped letting people submit any kind of posts, exept status updates. I run suPHP, tried with suEXEC, and without. Requirement script say I should have all needed stuff. At the same time as the board started breaking, the home button went missing, if that helps indicating where the fault is.

No error shows up in the in apache log, or Xenforos log. (Have not found out where cpanel hides the php log yet though.)

When submitting a new post, the layout on the site breaks, and the nothing.

Parts of the layout breaks, a white bar shows just below the admin bar, and the footer disapears, and width atributes breaks as well. Colours are still there though. My initial guess was jquery not working as it should, but that should not make the post not be submitted.

So it worked prior to migrating to cpanel and then for a few days after.

Did you make any changes to the server configuration or install any new add-ons immediately prior to everything breaking?

We need to try and identify the reason for the problem, it's very rare that issues such as this happen spontaneously, unless it's related to corruption and you said you've already reuploaded the files and tried a default style.

I compiled apache a couple of times, had to get used to easyapache and its outdateishnes. I have also used memcached, but removed it at some point after the migration.

I tried to completely uninstall widget framework now, instead of just disabling it and that gave me this error:

Code:

call_user_func() expects parameter 1 to be a valid callback, class 'WidgetFramework_Installer' not found
XenForo_Application::handlePhpError()
call_user_func() in XenForo/DataWriter/AddOn.php at line 148
XenForo_DataWriter_AddOn->_postDelete() in XenForo/DataWriter.php at line 1645
XenForo_DataWriter->delete() in XenForo/ControllerAdmin/AddOn.php at line 114
XenForo_ControllerAdmin_AddOn->actionDelete() in XenForo/FrontController.php at line 310
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
XenForo_FrontController->run() in /home/oufo/public_html/community/admin.php at line 13